Toothbrush



. n. H. LIEBERTHAL.

TOTHBRUSH.

APPLICATION FILED DCT. 20, 19|!)A 1,343,570. Patented June 15, 1920.

wirr/fasts n UNITED STATES PATENT OFFICE;

TOOTHBRUSH.

Specieation of Letters Patent.

Patented June 1,5, 1920.

lppHeeton led Octobez' 20, 1919. Serial No. 331,844.

To all whom t may concern.'

Be it known that I, Ronn'r H. Lumi-:R- IiAL, u citizen of 'the UnitedStates, and a esident of Bridgeport, county of Fairfield, nd State ofConnecticut, have invented ceriin new and useful Improvements inToothrushes, of which the following is a speciliation.

The present invention relates to brushes nd has for an object to providean iniu'oveditooth, brush of the type in whit-h rovision is made forcarrying dentifrice in hat part of the device which serves as theiandle.

Brushes known as fountain brushes, ns ieretofore made, have usually beenprovided vith a dentifrice container, carried in fixed osition in, orupon, the brush handle. In lu'h'struotures the container has usuallv eenpositioned at a distance from the bristle lead and the dentifrice hasbeen eondueted o the bristle bend by :1 tubo either formed n the brushshank or made separate. Such nbes easily heroine ohstrueted in use, andire generally unsanitary and objeetionalile. fl the dentifrii-e mntainerwere positioned lose to the bristle head to avoid the use of i longConfini-ting: tube, the container would nterl'ere with the use ot', thebrush.

The present invention avoids the use of a 'onduetingf tube and at thesame. time avoids he interferenee with free use of the brush x-' theeontniner blv innltinzgr the ('ontainer n-nnlble toward und fromdiseharging posi- Yion. ln the preferred embodiment of the nvention aeontainer is slidable toward the n'istle head to diseharge dentifrieeonto the iris-lle head. and slidable from the bristle `wad to retraetedposition to leave the bristle head free and unobstruz'ted in use.

'l`he invention will be better understood from the followingrspeeifimition whieh diould be rend in connection with the ao onipanyingdrawings i'orn'iing.; a part here irl and 1n whirh: i

Figure l is a neutral longitudinal section of a tooth brush eonstruetedin aeeordance with the invention. the bundle which rarries dentifrieebeing shown moved to its forward position on the lorush shank and arover being shown in position to protectthe brush;

Fig. 2 is a side View of the same, the brush and handle being shown inextended position ready for use, and the cover being removed;

Fig. 3 is a transverse sectional View taken on the line 3 3, Fig. 1;

Fig. 4 is a side view of ythe `cover.

In the construction illustrated, the handle, 1, is hollow1 to inelosethe dentifrice. Preferably it is so constructed that a container ot'some type already on the market, may be inserted bodily into the carrierand easily positioned for immediate use, as, for example, a Collapsibletulle, 2, of standard type and size. Suitahle provision may be made forcompressing,r the tube to extrude dentifrire hy providing an opening 3,in one side of the hollonY handle. Preferably an extruding plate l, isinserted within this openiner so as to Forni. in effort, a movable sideotthe hollou4 handle. The inner eiid t the handle is provided with ahole 5, through which the end t' ol' the eollapsible tube pro- `er'tsund by n'hieh it is held in position. Jlhisl opening ma); be threaded asshown, in order more rigidly to support the tube and to hohl it inrorreet position to discharge direetlj; onto the renter of the bristlehead. The outer end oi the handle is elosed by a rap '7, which isl'rietionally retained in plaee.

The handle is slidably mounted upon the shank 9. in snob manner that itmay be slid forward to discharge dentifriee direetly onto the bristlehead 9, or rearwardly away from the hristle head to n. positionpermitting' eonvenient use of the brush without interfen ent-e by thehandle.

The bristle head may he of an)Y desired type. preferably. however. iteonsists of a ventral row of Short bristles l between rows of longerbristles ll upon hoth sides. rl`his arrangement accomplishes twofunrtions: the dentifrieo is more readily retained upon the brush whenprojeeted into the trough so formed ond. also. the row of shortliristles permits the nozzle of the dentifriee eontainer to hepositioned closer to the shank T. thus facilitating a more compact andless enmbersome construction. lt is to he noted that. in noeordanee withthe present invention, dentifrice is disehargeddirectiy on to the faceof the brush, that is to say, with out passing through nn unsanitaryconducting tube, formed in the shank of the brush or otherwise todischarge among the bristles. I thus avoid this unsanitary feature whichis eon'nnon to many types of fountain brushes as heretofore devised.

'fn order to hold the handle in either its; forward or rearward positionon ille shank, a spring detent ifi is secured in a slot 14 in the shankand is engaged by a detent serew l5 in the handle to hold the parts ineither extreme position of adjustment.

The brush may he iolded by .pushing the handle to its forward positionadjacent the bristle beadj and a eover lo. may be pro-V vided to stipover the bristle` head to prov teet the same when folded. The dentifricetube is closed by the removable rap l? whirl] ordinarily serves as arlosnre for snrh tubes. 1f desireth'the (cover 1li may be n'iade to litover the hollow handle so that when the brush is in esta the rover isnot laid aside to be forgotten and lost. lli the over is to be soapplied, holes4 in should be provided through which the tube nia)F beroxnnessml. When the rover is applied to Vthe folded. brush it overliesthe bristle head. (li-v` holes lo permitting!J ventilation ol` thebristle head.

I claim:

1. In Combination with a tooth brush having a bristle head of a holdingmember slidably mounted on the brush for niovenient in the generaldirection ol the length ot' the brush toward and troni the bristle iheadA` Said member being` adapted to rumorA ably carry a dentifricecontainer with its discharge opening So positioned that when the memberis moved toward the bristle head, the dentifrice may he discharged tronithe container directly on to the fare ol the bristles.

2. In combination with a tooth brush ha v ilngIr a. bristle head, of a`dentifrice container' haring a discharge opening; said rontainer beingmounted for sliding movement in the general diret-tion ot the lel'igthof the brash toward end from the bristle head so as lo bring thedischarge opening of the ciontainer in position for discharging thedentifriee directly from the eontainer on to the bristle head when inits forward position.

Il. lin a toothbrush the rornbination with a bristle head and a shank ofa handle sld ably mounted on said shank, a dentifrice container rarriedby said handle and having a discharge opening so positioned that whenthe handle is slid to its forward position dentifrice may be disffhargeddirectly en to the {"aee of the hristle head and a detent lor holdingsaid handle and shank in adjusted positions.

l. ln a tooth-brueh the eoinhination with a bristle head and a shank ol'a hollow halb die slidably nionntrd on said shank adapted to honse adentifrice tnhe Vwith its nipple projecting forwardly tlnfough the innerend of the handle toward the ln'intle lieznl, one side of said handleheilig movable inwardly against the dentilfrire tubil toeatrndtdentiFtrier therefrom.

Vln a toothdnush the combination with a bristle head haring a row ofrelatively short bristles between two rows of relatirel)v long bristlesol' a dvnti'rhe rontainer mounted for sliding movement toward and fromthe brush lo brin; the discharge openingF ol" the Container to aposition to diseharge dentifriee onto said short hl'istles,substantially as described.

o, ln a toothvln'ilsh the ronilnnation with a shank and a bristle headeoinprising a. row of rrlatirelli` short bristles extendinglongitlnlinalli.v thv-wol. ot a` dentit'rire containing*t handleslidahl)Y mounted on said shiinlt, and arranged when in its forwardposition to lisrharge dentifricio direi-,tly onto the tare of the rowol' short bristles.y substantially as desrrlbed. i

7. ln a Jfountain toothbrush the combination with a shank and a bristlehead of e hollow handle slidably mounted on said shank toward and fromthe bristle head roinln'ising a easing having a threaded opening: in theend toward the bristle head to receive the threaded nippleof acollapsible tube and open at its opposite end and on one side, a Closurefor said open end and a movable extrnding plate in the open side,substantially as and for which purpose described.

H. ln a tooth brush the combination with a shank havingy bristlesprojecting from one side thereof forming a bristle head, of a handleslidahle on said shank toward and from the bristle head eonstrneted andai ranged to carry a dentil'rire tube with its diseharge end spaced fromsaid shank and positioned substantially in line withvthe faee of saidbristle` head wher-elly when said handle is slid to its forward positionadjaeent to the bristle head. dentifriee maybe `discharged onto saidbristle head.

ln testimony whereof l have hereunto set my hand.

ROBERT H. LTEBERTHAL.

